When I was a kid I was always apprehensive about visiting my family in Paris because the metro was so dirty, I remember once at a station it smelled so bad I thought there had to be rotten eggs somewhere on the floor. :/ so yeah, Paris is a really dirty city.
Yeah, that particular "romantic" parisian smell...

Oh, yeah, yeah, this it true. My grandmother warned me before my first visit, "If you want to retain your romantic notions of Paris, never go there." She was half right. Still one of the greatest cities in the world, pultritude aside.
how did the rest of the world view the cold war?
and communism?
Some of us (most of us?) are probably too young to remember or know much about it.
Everyone who's had a taste of communism will tell you it svcks. Most who haven't will tell you it svcks. Only blinkered idealists or sneak-thieves will tell you it's a good idea.
What is china like? is it really the economic powerhouse ive always heard?
Yes. Although, apparently the construction market will be tumbling shortly. There's too much being built over too short a period. The inflation and loans can't be sustained. If it happens, everyone, everywhere will be hurting. Imagine what America did to the world not too long ago, again, possibly even worse.
A car dealership near to where I used to live had a roving herd of "guard geese" patrolling the place overnight. They were apparently very effective.
Fascinating.